class A {
    float computer(float x,float y) {
      return x+y; 
    }
    public int g(int x,int y) {
      return x+y;
    }
}
class B extends A {
    float computer(float x,float y) {
      return x*y;
    }
}
public class Example5_5 {
    public static void main(String args[]) {
      B b=new B();
      double result=b.computer(8,9);		//b调用重写的方法
      System.out.println(result);
      int m=b.g(12,8);
      System.out.println(m);
    }
}
